Triumph (TGI) 10-Q 8 Nov 22 2023 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Sep. 30, 2022	Nov. 04, 2022
Document Information [Line Items]
Document Period End Date	Sep. 30, 2022
Entity Registrant Name	TRIUMPH GROUP, INC.
Entity Central Index Key	0001021162
Document Type	10-Q
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		65,000,903
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	51-0347963
Entity File Number	1-12235
Entity Address, Address Line One	899 Cassatt Road
Entity Address, Address Line Two	Suite 210
Entity Address, City or Town	Berwyn
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19312
City Area Code	610
Local Phone Number	251-1000
Document Quarterly Report	true
Document Transition Report	false
Common Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Common Stock, par value $.001 per share
Trading Symbol	TGI
Security Exchange Name	NYSE
Purchase Rights [Member]
Document Information [Line Items]
Title of 12(b) Security	Purchase Rights
No Trading Symbol Flag	true
Security Exchange Name	NYSE

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Mar. 31, 2022
Current assets:
Cash and cash equivalents	$ 104,450	$ 240,878
Trade and other receivables, less allowance for credit losses of $8,334 and $7,940	177,286	178,663
Contract assets	101,974	101,828
Inventory, net	398,075	361,692
Prepaid expenses and other current assets	17,554	19,903
Assets held for sale		60,104
Total current assets	799,339	963,068
Property and equipment, net	160,862	169,050
Goodwill	500,814	513,722
Intangible assets, net	78,870	84,850
Other, net	28,389	30,476
Total assets	1,568,274	1,761,166
Current liabilities:
Current portion of long-term debt	2,849	3,268
Accounts payable	154,588	161,534
Contract liabilities	42,475	171,763
Accrued expenses	155,950	208,059
Liabilities related to assets held for sale		57,519
Total current liabilities	355,862	602,143
Long-term debt, less current portion	1,587,933	1,586,222
Accrued pension and other postretirement benefits	273,529	301,303
Deferred income taxes	7,386	7,213
Other noncurrent liabilities	45,667	51,708
Stockholders' deficit:
Common stock, $.001 par value, 100,000,000 shares authorized, 64,980,483 and 64,629,279 shares issued; 64,980,483 and 64,614,382 shares outstanding	65	64
Capital in excess of par value	975,530	973,112
Treasury stock, at cost, 0 and 14,897 shares		(96)
Accumulated other comprehensive loss	(476,733)	(463,354)
Accumulated deficit	(1,200,965)	(1,297,149)
Total stockholders' deficit	(702,103)	(787,423)
Total liabilities and stockholders' deficit	$ 1,568,274	$ 1,761,166

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2022	Mar. 31, 2022
Statement of Financial Position [Abstract]
Allowance for credit losses	$ 8,334	$ 7,940
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	64,980,483	64,629,279
Common stock, shares outstanding	64,980,483	64,614,382
Treasury stock, shares	0	14,897

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Net sales	$ 307,600	$ 357,396	$ 656,984	$ 754,042
Operating costs and expenses:
Cost of sales (exclusive of depreciation shown separately below)	208,062	262,335	480,462	556,013
Selling, general and administrative	60,418	54,108	112,163	110,359
Depreciation and amortization	8,685	12,945	18,491	28,376
Restructuring	2,152	3,897	2,851	8,382
(Gain) loss on sale of assets and businesses	(103,883)	7,660	(103,883)	13,629
Operating Expenses	175,434	340,945	510,084	716,759
Operating income	132,166	16,451	146,900	37,283
Non-service defined benefit income	(8,563)	(10,449)	(17,149)	(8,727)
Debt extinguishment loss				9,689
Interest expense and other, net	32,453	34,183	64,365	72,741
Income (loss) from continuing operations before income taxes	108,276	(7,283)	99,684	(36,420)
Income tax expense	1,750	1,787	3,500	3,001
Net income (loss)	$ 106,526	$ (9,070)	$ 96,184	$ (39,421)
Earnings (loss) per share - basic
Net income (loss)	$ 1.64	$ (0.14)	$ 1.48	$ (0.61)
Weighted average common shares outstanding—basic	65,036	64,545	64,946	64,427
Earnings (loss) per share - diluted
Net income (loss)	$ 1.63	$ (0.14)	$ 1.47	$ (0.61)
Weighted average common shares outstanding—diluted	65,282	64,545	65,318	64,427

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 106,526	$ (9,070)	$ 96,184	$ (39,421)
Other comprehensive (loss) income:
Foreign currency translation adjustment	(12,433)	(5,692)	(22,815)	(2,943)
Amounts arising during the period - net of tax expense
Actuarial gain, net of taxes of $0, $0, $0, and $0, respectively		97		10,440
Reclassification to net income (loss) - net of expense
Amortization of net loss, net of taxes of $0, $0, $0, and $0, respectively	6,574	8,533	13,148	17,011
Recognized prior service (credits) cost, net of taxes of $0, $0, $0, and $0, respectively	(1,250)	2,576	(2,501)	4,384
Total defined benefit pension plans and other postretirement benefits income, net of taxes	5,324	11,206	10,647	31,835
Cash flow hedges:
Unrealized gain (loss) arising during the period, net of tax expense of $0, $0, $0, and $0, respectively	210	(1,613)	(261)	(3,333)
Reclassification of (loss) gain included in net earnings, net of tax expense of $0, $0, $0, and $0, respectively	(583)	414	(950)	1,428
Net unrealized loss on cash flow hedges, net of tax	(373)	(1,199)	(1,211)	(1,905)
Total other comprehensive (loss) income	(7,482)	4,315	(13,379)	26,987
Total comprehensive income (loss)	$ 99,044	$ (4,755)	$ 82,805	$ (12,434)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During the Period, Tax	$ 0	$ 0	$ 0	$ 0
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net (Gain) Loss, Tax	0	0	0	0
Other Comprehensive Income (Loss), Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service (Cost) Credit, Tax	0	0	0	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	0	0	0	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	$ 0	$ 0	$ 0	$ 0

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]		Accumulated Deficit [Member]
Balance at Mar. 31, 2021	$ (818,853)	$ 64	$ 978,272	$ (12,606)	$ (530,192)	[1]	$ (1,254,391)
Balance (in shares) at Mar. 31, 2021		64,185,001
Net loss	(30,351)						(30,351)
Foreign currency translation adjustment	2,749				2,749
Pension liability adjustment, net of income taxes	20,629				20,629
Change in fair value of foreign currency hedges, net of income taxes	(706)				(706)
Share-based compensation	2,470		(11,505)	13,975
Share-based compensation, shares		355,821
Repurchase of shares for share-based compensation minimum tax obligation	(2,336)			(2,336)
Repurchase of shares for share-based compensation minimum tax obligation, shares		(116,796)
Employee stock purchase plan	172		(235)	407
Employee stock purchase plan, shares		9,794
Balance at Jun. 30, 2021	(826,226)	$ 64	966,532	(560)	(507,520)	[1]	(1,284,742)
Balance (in shares) at Jun. 30, 2021		64,433,820
Balance at Mar. 31, 2021	(818,853)	$ 64	978,272	(12,606)	(530,192)	[1]	(1,254,391)
Balance (in shares) at Mar. 31, 2021		64,185,001
Foreign currency translation adjustment	(2,943)
Balance at Sep. 30, 2021	(828,869)	$ 65	968,090	(7)	(503,205)	[1]	(1,293,812)
Balance (in shares) at Sep. 30, 2021		64,601,353
Balance at Jun. 30, 2021	(826,226)	$ 64	966,532	(560)	(507,520)	[1]	(1,284,742)
Balance (in shares) at Jun. 30, 2021		64,433,820
Net loss	(9,070)						(9,070)
Foreign currency translation adjustment	(5,692)				(5,692)
Pension liability adjustment, net of income taxes	11,206				11,206
Change in fair value of foreign currency hedges, net of income taxes	(1,199)				(1,199)
Share-based compensation	2,737	$ 1	1,480	1,256
Share-based compensation, shares		196,674
Repurchase of shares for share-based compensation minimum tax obligation	(782)			(782)
Repurchase of shares for share-based compensation minimum tax obligation, shares		(36,824)
Employee stock purchase plan	157		78	79
Employee stock purchase plan, shares		7,683
Balance at Sep. 30, 2021	(828,869)	$ 65	968,090	(7)	(503,205)	[1]	(1,293,812)
Balance (in shares) at Sep. 30, 2021		64,601,353
Balance at Mar. 31, 2022	(787,423)	$ 64	973,112	(96)	(463,354)	[1]	(1,297,149)
Balance (in shares) at Mar. 31, 2022		64,614,382
Net loss	(10,342)						(10,342)
Foreign currency translation adjustment	(10,382)				(10,382)
Pension liability adjustment, net of income taxes	5,323				5,323
Change in fair value of foreign currency hedges, net of income taxes	(838)				(838)
Share-based compensation	1,657	$ 1	1,656
Share-based compensation, shares		471,676
Repurchase of shares for share-based compensation minimum tax obligation	(3,442)			(3,442)
Repurchase of shares for share-based compensation minimum tax obligation, shares		(172,282)
Retirement of treasury shares			(3,538)	3,538
Employee stock purchase plan	160		160
Employee stock purchase plan, shares		6,605
Balance at Jun. 30, 2022	(805,287)	$ 65	971,390		(469,251)	[1]	(1,307,491)
Balance (in shares) at Jun. 30, 2022		64,920,381
Balance at Mar. 31, 2022	(787,423)	$ 64	973,112	(96)	(463,354)	[1]	(1,297,149)
Balance (in shares) at Mar. 31, 2022		64,614,382
Foreign currency translation adjustment	(22,815)
Balance at Sep. 30, 2022	(702,103)	$ 65	975,530		(476,733)	[1]	(1,200,965)
Balance (in shares) at Sep. 30, 2022		64,980,483
Balance at Jun. 30, 2022	(805,287)	$ 65	971,390		(469,251)	[1]	(1,307,491)
Balance (in shares) at Jun. 30, 2022		64,920,381
Net loss	106,526						106,526
Foreign currency translation adjustment	(12,433)				(12,433)
Pension liability adjustment, net of income taxes	5,324				5,324
Change in fair value of foreign currency hedges, net of income taxes	(373)				(373)
Share-based compensation	3,970		3,970
Share-based compensation, shares		51,426
Repurchase of shares for share-based compensation minimum tax obligation	(48)			(48)
Repurchase of shares for share-based compensation minimum tax obligation, shares		(4,022)
Retirement of treasury shares	48			$ 48
Employee stock purchase plan	170		170
Employee stock purchase plan, shares		12,698
Balance at Sep. 30, 2022	$ (702,103)	$ 65	$ 975,530		$ (476,733)	[1]	$ (1,200,965)
Balance (in shares) at Sep. 30, 2022		64,980,483
[1] Net of tax

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Stockholders' Deficit (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2021	Jun. 30, 2021
Statement Of Stockholders Equity Parenthetical [Abstract]
Other comprehensive (income) loss, defined benefit plan, after reclassification adjustment, tax	$ 0	$ 0	$ 0	$ 0
Other comprehensive income (loss), tax	$ 0	$ 0	$ 0	$ 0

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating Activities
Net income (loss)	$ 106,526	$ (9,070)	$ 96,184	$ (39,421)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	8,685	12,945	18,491	28,376
Amortization of acquired contract liability	(867)	(1,493)	(1,390)	(2,707)
(Gain) loss on sale of assets and businesses	(103,883)	7,660	(103,883)	13,629
Curtailments, settlements, and special termination benefits loss, net				20,046
Other amortization included in interest expense			3,140	5,602
Provision for credit losses			383	320
Share-based compensation			5,530	5,072
Changes in other assets and liabilities, excluding the effects of acquisitions and divestitures:
Trade and other receivables			(5,799)	8,268
Contract assets			(10,910)	(9,640)
Inventories			(39,324)	1,783
Prepaid expenses and other current assets			756	2,292
Accounts payable, accrued expenses, and contract liabilities			(58,487)	(190,152)
Accrued pension and other postretirement benefits			(17,073)	(27,852)
Other, net			6	(1,142)
Net cash used in operating activities			(112,376)	(185,526)
Investing Activities
Capital expenditures	(4,123)	(5,369)	(7,167)	(7,481)
(Payments on) proceeds from sale of assets and businesses			(6,161)	185,622
Investment in joint venture				(2,101)
Purchase of facility related to divested businesses				(21,550)
Net cash (used in) provided by investing activities			(13,328)	154,490
Financing Activities
Retirement of debt and finance lease obligations			(1,809)	(353,513)
Premium on redemption of first lien notes				(7,489)
Repurchase of shares for share-based compensation minimum tax obligation			(3,490)	(3,118)
Net cash used in financing activities			(5,299)	(364,120)
Effect of exchange rate changes on cash			(5,425)	(604)
Net change in cash and cash equivalents			(136,428)	(395,760)
Cash and cash equivalents at beginning of period			240,878	589,882
Cash and cash equivalents at end of period	$ 104,450	$ 194,122	$ 104,450	$ 194,122

Background and Basis of Present

Background and Basis of Presentation	6 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Background and Basis of Presentation	1. BACKGROUND AND BASIS OF PRESENTATION The accompanying unaudited condensed consolidated financial statements of Triumph Group, Inc. ("Triumph") have been prepared in conformity with accounting principles generally accepted in the United States ("U.S. GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, the interim financial information includes all adjustments of a normal recurring nature necessary for a fair presentation of the results of operations, financial position, and cash flows. The results of operations for the three and six months ended September 30, 2022 and 2021, are not necessarily indicative of results that may be expected for the year ending March 31, 2023. The accompanying condensed consolidated financial statements are unaudited and should be read in conjunction with the fiscal 2022 audited consolidated financial statements and notes thereto included in the Company's Form 10-K for the fiscal year ended March 31, 2022, filed with the Securities and Exchange Commission (the "SEC") on May 23, 2022. Triumph is a Delaware corporation that, through its operating subsidiaries, designs, engineers, manufactures, and sells products for global aerospace original equipment manufacturers ("OEMs") of aircraft and aircraft components and repairs and overhauls aircraft components and accessories for commercial airline, air cargo carrier, and military customers on a worldwide basis. Triumph and its subsidiaries (collectively, the "Company") are organized based on the products and services that they provide. The Company has two reportable segments: Systems & Support and Aerospace Structures. Systems & Support consists of the Company’s operations that provide integrated solutions, including design; development; and support of proprietary components, subsystems and systems, as well as production of complex assemblies using external designs. Capabilities include hydraulic, mechanical and electromechanical actuation, power and control; a complete suite of aerospace gearbox solutions, including engine accessory gearboxes and helicopter transmissions; active and passive heat exchange technology; fuel pumps, fuel metering units, and Full Authority Digital Electronic Control fuel systems; and hydromechanical and electromechanical primary and secondary flight controls. Systems & Support also provides full life cycle solutions for commercial, regional, and military aircraft. The Company’s extensive product and service offerings include full post-delivery value chain services that simplify the maintenance, repair, and overhaul (“MRO”) supply chain. Through its ground support equipment maintenance, component MRO, and post-production supply chain activities, Systems & Support is positioned to provide integrated planeside repair solutions globally. Capabilities include repair services for metallic and composite aircraft structures; nacelles; thrust reversers; interiors; auxiliary power units; and a wide variety of pneumatic, hydraulic, fuel, and mechanical accessories. Repair services generally involve the replacement and/or remanufacturing of parts, which is similar to the original manufacture of the part. The processes that the Company performs related to repair and overhaul services are essentially the repair of wear parts or the replacement of parts that are beyond economic repair. The repair service generally involves remanufacturing a complete part or a component of a part. Aerospace Structures consists of the Company’s operations that supply commercial, business, and regional manufacturers with large metallic and composite structures and aircraft interior systems, including air ducting and thermal acoustic insulations systems. Products include wings; wing boxes; fuselage panels; horizontal and vertical tails; subassemblies such as floor grids; and aircraft interior systems, including air ducting and thermal acoustic insulation systems. Aerospace Structures also has the capability to engineer detailed structural designs in metal and composites. Capabilities include advanced composite and interior structures, joining processes such as welding, and conventional mechanical fasteners. Subsequent to the divestitures disclosed in Note 3, the remaining operations of Aerospace Structures are those that supply commercial and regional manufacturers with aircraft interior systems. The accompanying condensed consolidated financial statements include the accounts of Triumph and its wholly-owned subsidiaries. Intercompany accounts and transactions have been eliminated from the accompanying condensed consolidated financial statements.

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Sep. 30, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Use of Estimates The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Revenue Recognition and Contract Balances The Company's revenue is principally from contracts with customers to provide design, development, manufacturing, and support services associated with specific customer programs. The Company regularly enters into long-term master supply agreements that establish general terms and conditions and may define specific program requirements. Many agreements include clauses that provide sole supplier status to the Company for the duration of the program’s life. Purchase orders (or authorizations to proceed) are issued pursuant to the master supply agreements. Additionally, a majority of the Company’s agreements with customers include options for future purchases. Such options primarily reduce the administrative effort of issuing subsequent purchase orders and do not represent material rights granted to customers. The Company generally enters into agreements directly with its customers and is the principal in all current contracts. The identification of a contract with a customer for purposes of accounting and financial reporting requires an evaluation of the terms and conditions of agreements to determine whether presently enforceable rights and obligations exist. Management considers a number of factors when making this evaluation that include, but are not limited to, the nature and substance of the business exchange, the specific contractual terms and conditions, the promised products and services, the termination provisions in the contract, as well as the nature and execution of the customer’s ordering process and how the Company is authorized to perform work. Generally, presently enforceable rights and obligations are not created until a purchase order is issued by a customer for a specified number of units of product or services. Therefore, the issuance of a purchase order is generally the point at which a contract is identified for accounting and financial reporting purposes. Management identifies the promises to the customer. Promises are generally explicitly stated in each contract, but management also evaluates whether any promises are implied based on the terms of the agreement, past business practice, or other facts and circumstances. Each promise is evaluated to determine if it is a performance obligation. A performance obligation is a promise in a contract to transfer a distinct good or service. The Company considers a number of factors when determining whether a promise is a distinct performance obligation, including whether the customer can benefit from the good or service on its own or together with other resources that are readily available to the customer, whether the Company provides a significant service of integrating goods or services to deliver a combined output to the customer, or whether the goods or services are highly interdependent. The Company’s performance obligations consist of a wide range of engineering design services and manufactured components, as well as spare parts and repairs for OEMs. The transaction price for a contract reflects the consideration the Company expects to receive for fully satisfying the performance obligations in the contract. Typically, the transaction price consists solely of fixed consideration but may include variable consideration for contractual provisions such as unpriced contract modifications, cost-sharing provisions, and other receipts or payments to customers. The Company identifies and estimates variable consideration, typically at the most likely amount the Company expects to receive from its customers. Variable consideration is only included in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized for the contract will not occur, or when the uncertainty associated with the variable consideration is resolved. Consideration paid or payable to a customer is reflected as a reduction in net revenues when the amounts paid are not related to a distinct good or service at the later of when the related revenue is recognized or when the Company pays or promises to pay the consideration to the customer. The Company's contracts with customers generally require payment under normal commercial terms after delivery with payment typically required within 30 to 120 days of delivery. The Company generally is not subject to collecting sales tax and has made an accounting policy election to exclude from the transaction price any sales and other similar taxes collected from customers. As a result, any such collections are accounted for on a net basis. The total transaction price is allocated to each of the identified performance obligations using the relative stand-alone selling price. The objective of the allocation is to reflect the consideration that the Company expects to receive in exchange for the products or services associated with each performance obligation. Stand-alone selling price is the price at which the Company would sell a promised good or service separately to a customer. Stand-alone selling prices are established at contract inception, and subsequent changes in transaction price are allocated on the same basis as at contract inception. When stand-alone selling prices for the Company’s products and services are not observable, the Company uses either the “Expected Cost Plus a Margin” or "Adjusted Market Assessment" approaches to estimate stand-alone selling price. Expected costs are typically derived from the available periodic forecast information. Revenue is recognized when or as control of promised products or services transfers to a customer and is recognized at the amount allocated to each performance obligation associated with the transferred products or services. Service sales, principally representing repair, maintenance, and engineering activities are recognized over the contractual period or as services are rendered. Sales under long-term contracts with performance obligations satisfied over time are recognized using either an input or output method. The Company recognizes revenue over time as it performs on these contracts because of the continuous transfer of control to the customer as represented by contractual terms that entitle the Company to the reimbursement of costs plus a reasonable profit for work performed to manufacture products for which the Company has no alternate use or for work performed on a customer-owned asset. With control transferring over time, revenue is recognized based on the extent of progress toward completion of the performance obligation. The Company generally uses the cost-to-cost input method of progress for its contracts because it best depicts the transfer of control to the customer that occurs as work progresses. Under the cost-to-cost method, the extent of progress toward completion is measured based on the proportion of costs incurred to date to the total estimated costs at completion of the performance obligation. The Company reviews its cost estimates on contracts on a periodic basis, or when circumstances change and warrant a modification to a previous estimate. Cost estimates are largely based on negotiated or estimated purchase contract terms, historical performance trends, and other economic projections. Significant factors that influence these estimates include inflationary trends, technical and schedule risk, internal and subcontractor performance trends, business volume assumptions, asset utilization, and anticipated labor agreements. Revenue and cost estimates are regularly monitored and revised based on changes in circumstances. Impacts from changes in estimates of net sales and cost of sales are recognized on a cumulative catch-up basis, which recognizes in the current period the cumulative effect of the changes on current and prior periods based on a performance obligation’s percentage of completion. Forward loss reserves for anticipated losses on long-term contracts are recorded in full when such losses become evident, to the extent required, and are included in contract liabilities on the accompanying condensed consolidated balance sheets. The Company believes that the accounting estimates and assumptions made by management are appropriate given the increased uncertainties surrounding the severity and duration of the impacts of the COVID-19 pandemic; however, actual results could differ materially from those estimates. For the three months ended September 30, 2022, cumulative catch-up adjustments resulting from changes in contract values and estimated costs that arose during the fiscal year increased net sales, operating income, net income, and earnings per diluted share by approximately $ 867 , $ 9,422 , $ 9,422 , and $ 0.14 , respectively. For the three months ended September 30, 2021, cumulative catch-up adjustments resulting from changes in estimates increased revenue by approximately $ 3,066 and decreased operating loss, net loss, and loss per share by approximately $ 7,455 , $ 7,455 , and $ 0.12 , respectively. For the six months ended September 30, 2022, cumulative catch-up adjustments resulting from changes in contract values and estimated costs that arose during the fiscal year increased net sales, operating income, net income, and earnings per diluted share by approximately $ 11,993 , $ 19,495 , $ 19,495 , and $ 0.30 , respectively. For the six months ended September 30, 2021, cumulative catch-up adjustments resulting from changes in estimates increased revenue by approximately $ 6,375 , and decreased operating loss, net loss, and loss per share by approximately $ 16,910 , $ 16,910 , and $ 0.26 , respectively. Revenues for performance obligations that are not recognized over time are recognized at the point in time when control transfers to the customer. For performance obligations that are satisfied at a point in time, the Company evaluates the point in time when the customer can direct the use of and obtain the benefits from the products and services. Generally, the shipping terms determine the point in time when control transfers to customers. Shipping and handling activities are not considered performance obligations and related costs are included in cost of sales as incurred. Differences in the timing of revenue recognition and contractual billing and payment terms result in the recognition contract assets and liabilities. Refer to Note 4 for further discussion. Concentration of Credit Risk The Company’s trade and other accounts receivable are exposed to credit risk. However, the risk is limited due to the diversity of the customer base and the customer base’s wide geographical area. Trade accounts receivable from The Boeing Company ("Boeing") (representing commercial, military, and space) represented approximately 16 % and 17 % of total trade accounts receivable as of September 30, 2022 and March 31, 2022, respectively. Trade and other accounts receivable from Daher Aerospace Inc. ("Daher") include receivables that largely correspond with payables associated with transition services and represented approximately 17 % as of September 30, 2022. Trade and other accounts receivable from Daher were not signifcant as of March 31, 2022. The Company had no other concentrations of credit risk of more than 10%. Sales to Boeing for the six months ended September 30, 2022, were $ 189,311 , or 29 % of net sales, of which $ 89,825 and $ 99,486 were from Systems & Support and Aerospace Structures, respectively. Sales to Boeing for the six months ended September 30, 2021, were $ 273,426 , or 36 % of net sales, of which $ 82,988 and $ 190,439 were from Systems & Support and Aerospace Structures, respectively. No other single customer accounted for more than 10% of the Company’s net sales. However, the loss of any significant customer, including Boeing, could have a material adverse effect on the Company and its operating subsidiaries. Fair Value Measurements Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. When determining fair value measurements for assets and liabilities required to be recorded or disclosed at fair value, the Company considers the principal or most advantageous market in which it would transact and also considers assumptions that market participants would use when pricing an asset or liability. The fair value hierarchy has three levels of inputs that may be used to measure fair value: Level 1—Unadjusted quoted prices in active markets for identical assets or liabilities; Level 2—Unadjusted quoted prices in active markets for similar assets or liabilities, or unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs other than quoted prices that are observable for the asset or liability; and Level 3—Unobservable inputs for the asset or liability. The Company has applied fair value measurements when comparing the carrying value of assets held for sale with the related fair value less cost to sell (see Note 3), when disclosing the fair value of its long-term debt not recorded at fair value (see Note 6), and to its pension and postretirement plan assets (see Note 9). Supplemental Cash Flow Information In November 2021, the Company entered into an agreement with the DOT under the AMJP for a grant of up to $ 21,259 . The receipt of the full award was primarily conditioned upon the Company committing to not furlough or lay off a defined group of employees during the six-month period of performance between November 2021 and May 2022. The Company received approximately $ 19,400 under the agreement, and, in July, received a letter from the DOT confirming that the Company had satisfied the reporting requirements under the AMJP. In the six months ended September 30, 2022, the Company recognized as a reduction in cost of sales approximately $ 5,300 representing the final balance of the earned grant benefit. For the six months ended September 30, 2022, the Company paid $ 2,619 for income taxes, net of income tax refunds received. For the six months ended September 30, 2021, the Company paid $ 1,760 for income taxes, net of income tax refunds received.

Divested Operations and Assets

Divested Operations and Assets Held For Sale	6 Months Ended
	Sep. 30, 2022
Discontinued Operations and Disposal Groups [Abstract]
Divested Operations and Assets Held For Sale	3. DIVESTED OPERATIONS AND ASSETS HELD FOR SALE Fiscal 2023 Divestitures In January 2022, the Company’s Board of Directors committed to a plan to sell its manufacturing operations located in Stuart, Florida. In February 2022, the Company entered into a definitive agreement with the buyer of these manufacturing operations. This transaction closed in July 2022. Upon the completion of the sale of the Stuart manufacturing operations, the Company recognized a gain of approximately $ 99,200 , net of transaction costs. The purchase price included the assumption of certain liabilities of the Company; no cash proceeds were received in the transaction. The operating results of the Stuart, Florida, manufacturing operations are included within the Aerospace Structures reportable segment through the date of divestiture. In the three months ended September 30, 2022, the Company recognized a gain of approximately $ 4,500 from working capital settlements related to the fiscal 2022 divestitures described below. Fiscal 2022 Divestitures In May 2020, the Company’s Board of Directors committed to a plan to sell its composites manufacturing operations located in Milledgeville, Georgia and Rayong, Thailand. In August 2020, the Company entered into a definitive agreement with the buyer of the composites manufacturing operations in Georgia and Thailand. In February 2021, the Company entered into a definitive agreement to sell its large structure manufacturing operations in Red Oak, Texas, to the same buyer of the Milledgeville and Rayong composites manufacturing operations. These transactions closed in May 2021. Upon the completion of the sale of the composites and large structure manufacturing operations, the Company received proceeds of approximately $ 155,000 net of the purchase of a facility related to the divestiture and other transaction costs and recognized an additional loss of approximat ely $ 6,000 , which is presented on the accompanying condensed consolidated statements of operations within loss on sale of assets and businesses for the three months ended June 30, 2021. The loss was primarily the result of changes in the working capital balances of the disposal group from March 31, 2021, to the date of divestiture. The operating results of these related operations are included within the Aerospace Structures reportable segment through the date of divestiture. As a result of the completed sale of these manufacturing operations, the Company recognized a pension curtailment charge of approximately $ 16,000 during the three months ended June 30, 2021. In August 2021, the Company's Board of Directors committed to a plan to sell and license certain legacy product lines of the Company's Staverton, United Kingdom operations. The transaction includes the existing facility and select product lines associated with the site. The transaction closed in October 2021 for net proceeds of approximately $ 34,000 , and the effect on earnings was insignificant. The operating results of the Staverton, United Kingdom, manufacturing operations were included within the Systems & Support reportable segment through the date of divestiture. As a result of the fiscal 2022 divestitures described above, including routine closing working capital adjustments, the Company recognized losses of approximately $ 8,000 in the three months ended September 30, 2021.

Revenue Recognition and Contrac

Revenue Recognition and Contracts with Customers	6 Months Ended
	Sep. 30, 2022
Change in Contract with Customer, Asset and Liability [Abstract]
Revenue Recognition and Contracts with Customers	4. REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS Disaggregation of Revenue The Company disaggregates revenue based on the method of measuring satisfaction of the performance obligation either over time or at a point in time. Additionally, the Company disaggregates revenue based upon the end market where products and services are transferred to the customer. The Company’s principal operating segments and related revenue are discussed in Note 11, Segments. The following table shows disaggregated net sales satisfied overtime and at a point in time (excluding intercompany sales) for the three and six months ended September 30, 2022 and 2021: Three Months Ended Six Months Ended 2022 2021 2022 2021 Systems & Support Satisfied over time $ 111,718 $ 114,683 $ 232,436 $ 233,664 Satisfied at a point in time 161,613 132,582 295,015 270,804 Revenue from contracts with customers 273,331 247,265 527,451 504,468 Amortization of acquired contract liabilities 867 1,493 1,390 2,695 Total revenue 274,198 248,758 528,841 507,163 Aerospace Structures Satisfied over time $ 28,456 $ 97,633 $ 118,048 $ 227,156 Satisfied at a point in time 4,946 11,005 10,095 19,711 Revenue from contracts with customers 33,402 108,638 128,143 246,867 Amortization of acquired contract liabilities — — — 12 Total revenue 33,402 108,638 128,143 246,879 $ 307,600 $ 357,396 $ 656,984 $ 754,042 The following table shows disaggregated net sales by end market (excluding intercompany sales) for the three and six months ended September 30, 2022 and 2021: Three Months Ended Six Months Ended 2022 2021 2022 2021 Systems & Support OEM Commercial $ 94,605 $ 59,347 $ 172,625 $ 118,586 OEM Military 61,399 72,317 118,335 149,012 MRO Commercial 65,078 49,618 125,117 105,465 MRO Military 44,960 54,204 95,906 113,316 Non-aviation 7,289 11,779 15,468 18,089 Revenue from contracts with customers 273,331 247,265 527,451 504,468 Amortization of acquired contract liabilities 867 1,493 1,390 2,695 Total revenue $ 274,198 $ 248,758 $ 528,841 $ 507,163 Aerospace Structures OEM Commercial $ 33,241 $ 104,462 $ 123,760 $ 226,154 OEM Military 24 1,210 52 13,861 MRO Commercial — 2,966 3,144 5,782 MRO Military — — — 1,052 Non-aviation 137 — 1,187 18 Revenue from contracts with customers 33,402 108,638 128,143 246,867 Amortization of acquired contract liabilities — — — 12 Total revenue 33,402 108,638 128,143 246,879 $ 307,600 $ 357,396 $ 656,984 $ 754,042 Contract Assets and Liabilities Contract assets primarily represent revenues recognized for performance obligations that have been satisfied or partially satisfied but for which amounts have not been billed. This typically occurs when revenue is recognized over time but the Company's contractual right to bill the customer and receive payment is conditional upon the satisfaction of additional performance obligations in the contract, such as final delivery of the product. Contract assets are typically derecognized when billed in accordance with the terms of the contract. The Company pools contract assets that share underlying risk characteristics and records an allowance for expected credit losses based on a combination of prior experience, current economic conditions and management’s expectations of future economic conditions, and specific collectibility matters when they arise. Contract assets are presented net of this reserve on the condensed consolidated balance sheets. For the three and six months ended September 30, 2022 and 2021, credit loss expense and write-offs related to contract assets were immaterial. Contract liabilities are recorded when customers remit contractual cash payments in advance of the Company satisfying performance obligations under contractual arrangements, including those with performance obligations to be satisfied over a period of time. Contract liabilities other than those pertaining to forward loss reserves are derecognized when or as revenue is recognized. Contract modifications can also impact contract asset and liability balances. When contracts are modified to account for changes in contract specifications and requirements, the Company considers whether the modification either creates new or changes the existing enforceable rights and obligations. Contract modifications that are for goods or services that are not distinct from the existing contract, due to the significant integration with the original good or service provided, are accounted for as if they were part of that existing contract. The effect of a contract modification to an existing contract on the transaction price and the Company's measure of progress for the performance obligation to which it relates, is recognized as an adjustment to revenue (either as an increase in or a reduction of revenue) on a cumulative catch-up basis. When the modifications include additional performance obligations that are distinct and at relative stand-alone selling price, they are accounted for as a new contract and performance obligation and are recognized prospectively. Contract balances are classified as assets or liabilities on a contract-by-contract basis at the end of each reporting period. The following table summarizes the Company's contract assets and liabilities balances: September 30, 2022 March 31, Change Contract assets $ 101,974 $ 101,893 $ 81 Contract liabilities ( 43,385 ) ( 172,862 ) 129,477 Net contract asset (liability) $ 58,589 $ ( 70,969 ) $ 129,558 During the six months ended September 30, 2022, the Company recognized revenue due to changes in estimates associated with performance obligations satisfied or partially satisfied in previous periods of $ 11,993 . The change in contract assets was not significant in the six months ended September 30, 2022 . The change in contract liabilities is the result of revenue recognized in excess of the receipt of additional customer advances as well as the extinguishment of approximately $ 103,803 of customer advance repayment obligations that were assumed by the buyer of the Stuart, Florida, manufacturing operations. For the six months ended September 30, 2022, the Company recognized $ 31,482 of revenue that was included in the contract liability balance at the beginning of the period. Performance Obligations Customers generally contract with the Company for requirements in a segment relating to a specific program, and the Company’s performance obligations consist of a wide range of engineering design services and manufactured components, as well as spare parts and repairs for OEMs. A single contract may contain multiple performance obligations consisting of both recurring and nonrecurring elements. As of September 30, 2022, the Company has the following unsatisfied, or partially unsatisfied, performance obligations that are expected to be recognized in the future as noted in the table below. The Company expects options to be exercised in addition to the amounts presented below. Total Less than 1 year 1 - 3 years 4 - 5 years More than 5 Unsatisfied performance obligations $ 1,325,232 $ 769,902 $ 534,772 $ 20,558 $ —

Inventories

Inventories	6 Months Ended
	Sep. 30, 2022
Inventory Disclosure [Abstract]
Inventories	5. INVENTORIES Inventories are stated at the lower of cost (average-cost or specific-identification methods) or market. The components of inventories are as follows: September 30, March 31, Raw materials $ 51,273 $ 44,841 Work-in-process, including manufactured and purchased components 298,273 269,368 Finished goods 21,981 19,472 Rotable assets 26,548 28,011 Total inventories $ 398,075 $ 361,692

Long-term Debt

Long-term Debt	6 Months Ended
	Sep. 30, 2022
Debt Disclosure [Abstract]
Long-Term Debt	6. LONG-TERM DEBT Long-term debt consists of the following: September 30, March 31, Finance leases $ 14,738 $ 16,492 Senior secured first lien notes due 2024 563,171 563,171 Senior secured notes due 2024 525,000 525,000 Senior notes due 2025 500,000 500,000 Less: debt issuance costs ( 12,127 ) ( 15,173 ) 1,590,782 1,589,490 Less: current portion 2,849 3,268 $ 1,587,933 $ 1,586,222 Receivables Securitization Program In connection with the Company's receivables securitization facility (the "Securitization Facility"), the Company sells on a revolving basis certain eligible accounts receivable to Triumph Receivables, LLC, a wholly-owned special-purpose entity, which in turn sells a percentage ownership interest in the receivables to commercial paper conduits sponsored by financial institutions. The Company is the servicer of the trade accounts receivable under the Securitization Facility. Interest rates are based on the Bloomberg Short Term Bank Yield Index ("BSBY"), plus a 2.25 % fee on the drawn portion and a fee ranging from 0.45 % to 0.50 % on the undrawn portion of the Securitization Facility. The drawn fee may be reduced to 2.00 % depending on the credit rating of the Company. Collateralized letters of credit incur fees at a rate of 1.25 %. The Company secures its trade accounts receivable, which are generally non-interest-bearing, in transactions that are accounted for as borrowings pursuant to ASC 860, Transfers and Servicing . The Company has established a letter of credit facility under the Securitization Facility. Under the provisions of the letter of credit facility, the Company may request the Securitization Facility’s administrator to issue one or more letters of credit that will expire no later than 12 months after the date of issuance, extension or renewal, as applicable. As of September 30, 2022 , the maximum amount available under the Securitization Facility was $ 100,000 . The actual amount available under the Securitization Facility at any point in time is dependent upon the balance of eligible accounts receivable as well as the amount of letters of credit outstanding. At September 30, 2022, there were $ 0 in borrowings and $ 20,970 in letters of credit outstanding under the Securitization Agreement, primarily to support insurance policies. The Securitization Facility expires in November 2024 . The agreements governing the Securitization Facility contain restrictions and covenants, including limitations on the making of certain restricted payments; creation of certain liens; and certain corporate acts such as mergers, consolidations and the sale of all or substantially all the Company's assets. Senior Secured First Lien Notes due 2024 On August 17, 2020, the Company issued $ 700,000 principal amount of 8.875 % Senior Secured First Lien Notes due June 1, 2024 (the “First Lien Notes”). The First Lien Notes were sold at 100 % of the principal amount and have an effective interest yield of 8.875 %. Interest is payable semiannually in cash in arrears on June 1 and December 1 of each year. The First Lien Notes are first lien secured obligations of the Company. The First Lien Notes are guaranteed on a full, senior secured, joint and several basis by each of the Company’s domestic restricted subsidiaries that guarantees either of the Company’s 2024 Notes and 2025 Notes, as defined below (the “Guarantor Subsidiaries”). In the future, each of the Company’s domestic restricted subsidiaries (other than any domestic restricted subsidiary that is a receivable subsidiary) that (1) is not an immaterial subsidiary, (2) becomes a borrower under any of its material debt facilities or (3) guarantees (a) any of the Company’s indebtedness or (b) any indebtedness of the Company’s domestic restricted subsidiaries, in the case of either (a) or (b), incurred under any of the Company’s material debt facilities, will guarantee the First Lien Notes. Under certain circumstances, the guarantees may be released without action by, or consent of, any holder of the First Lien Notes. The Company may redeem the First Lien Notes, in whole or in part, at any time or from time to time on or after February 1, 2023, at specified redemption prices, plus accrued and unpaid interest, if any, to the redemption date. At any time or from time to time prior to February 1, 2023, the Company may redeem the First Lien Notes, in whole or in part, at a redemption price equal to 100 % of their principal amount plus a make whole premium, together with accrued and unpaid interest, if any, to the redemption date. In addition, the Company may redeem up to 40 % of the aggregate principal amount of the outstanding First Lien Notes prior to June 1, 2023, with the net cash proceeds from certain equity offerings at a redemption price equal to 108.875 % of their principal amount, together with accrued and unpaid interest, if any, to the redemption date. If the Company experiences specific kinds of changes of control, the Company is required to offer to purchase all of the First Lien Notes at a purchase price of 101 % of their principal amount, plus accrued and unpaid interest, if any, to the date of purchase. The First Lien Notes Indenture contains covenants that, among other things, limit the ability of the Company and its restricted subsidiaries to: (i) incur additional indebtedness; (ii) pay dividends or make other distributions; (iii) make other restricted payments and investments; (iv) create liens; (v) incur restrictions on the ability of restricted subsidiaries to pay dividends or make certain other payments; (vi) sell assets, including capital stock of restricted subsidiaries; (vii) enter into sale and leaseback transactions; (viii) merge or consolidate with other entities; and (ix) enter into transactions with affiliates. In addition, the First Lien Notes Indenture requires, among other things, the Company to provide financial and current reports to holders of the First Lien Notes or file such reports electronically with the SEC. Furthermore, the First Lien Notes Indenture requires that the future net proceeds from certain asset sales will be required to repay the First Lien Notes at a premium of 106.656 %, until the aggregate principal amount of Notes outstanding is $ 350,000 or less, provided that the Company may retain the first $ 100,000 of such net proceeds (subject to compliance with the asset sale covenants in the Company’s other outstanding indentures) or use it for certain other permitted purposes. These covenants are subject to a number of exceptions, limitations and qualifications set forth in the Indenture, as well as suspension periods in certain circumstances. Upon the completion of the sale of the composites and large structure manufacturing operations as disclosed in Note 3, the Company surpassed the $ 100,000 threshold of net proceeds from certain asset sales resulting in a required redemption of $ 112,511 of the outstanding principal balance and a premium of approximately $ 7,489 in the three months ended June 30, 2021. As a result of the completion of the sale and license of certain legacy product lines of the Company's Staverton, United Kingdom operations, the Company was required to pay an additional required redemption of $ 24,318 of the outstanding principal balance and a premium of approximately $ 1,619 in the three months ended December, 31, 2021. In the three months ended September 30, 2022, the Company sold intellectual property that required redemption of $ 19,340 of the outstanding principal balance and a premium of approximately $ 1,287 which payment was subsequent to September 30, 2022, in October 2022. Senior Secured Notes Due 2024 On September 23, 2019, the Company issued $ 525,000 principal amount of 6.250 % Senior Secured Notes due September 15, 2024 (the "2024 Notes"). The 2024 Notes were sold at 100 % of principal amount and have an effective interest yield of 6.250 %. Interest on the 2024 Notes is payable semiannually in cash in arrears on March 15 and September 15 of each year. The 2024 Notes are secured by second-priority liens on all of the Company's and the Guarantor Subsidiaries' assets that secure all of the indebtedness under the First Lien Notes and certain hedging and cash management obligations. The Company has the ability to incur additional first and/or second lien debt under certain circumstances. Senior Notes Due 2025 On August 17, 2017, the Company issued $ 500,000 principal amount of 7.750 % Senior Notes due August 15, 2025 (the "2025 Notes"). The 2025 Notes were sold at 100 % of principal amount and have an effective interest yield of 7.750 %. Interest on the 2025 Notes accrues at the rate of 7.750 % per annum and is payable semiannually in cash in arrears on February 15 and August 15 of each year. Financial Instruments Not Recorded at Fair Value Carrying amounts and the related estimated fair values of the Company's long-term debt not recorded at fair value in the consolidated financial statements are as follows: September 30, 2022 March 31, 2022 Carrying Fair Carrying Fair $ 1,590,782 $ 1,446,078 $ 1,589,490 $ 1,639,248 The fair value of the long-term debt was calculated based on either interest rates available for debt with terms and maturities similar to the Company's existing debt arrangements or broker quotes on the Company's existing debt (Level 2 inputs). Interest paid on indebtedness during the six months ended September 30, 2022 and 2021, amounted to $ 62,731 and $ 82,570 , respectively. The interest paid during the six months ended September 30, 2021, included the redemption premiums on the First Lien Notes of $ 7,489 .

Earnings per Share

Earnings per Share	6 Months Ended
	Sep. 30, 2022
Earnings Per Share [Abstract]
Earnings per Share	7. EARNINGS PER SHARE The following is a reconciliation between the weighted average outstanding shares used in the calculation of basic and diluted earnings per share: Three Months Ended September 30, Six Months Ended September 30, (in thousands) (in thousands) 2022 2021 2022 2021 Weighted average common shares outstanding – basic 65,036 64,545 64,946 64,427 Net effect of dilutive stock options and non-vested stock (1) 246 — 372 — Weighted average common shares outstanding – diluted 65,282 64,545 65,318 64,427 (1) For the three and six months ended September 30, 2022 and 2021 , the shares that could potentially dilute earnings per share in the future but were not included in diluted weighted average common shares outstanding because to do so would have been anti-dilutive were immaterial.

Income Taxes

Income Taxes	6 Months Ended
	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	8. INCOME TAXES The Company follows the Income Taxe s topic of ASC 740, which prescribes a recognition threshold and measurement attribute criteria for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return, as well as guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure, and transition. The Company's policy is to release the tax effects from accumulated other comprehensive income when all of the related assets or liabilities that gave rise to the accumulated other comprehensive income have been derecognized. The Company has classified uncertain tax positions as noncurrent income tax liabilities unless expected to be paid in one year. Penalties and tax-related interest expense are reported as a component of income tax expense and are not significant. As of September 30, 2022 and March 31, 2022, the total amount of unrecog nized tax benefits was $ 11,903 and $ 11,800 , respectively, most of which would impact the effective rate, if recognized. The Company does not anticipate that total unrecognized tax benefits will be reduced in the next 12 months. As of September 30, 2022, the Company has a valuation allowance against principally all of its net deferred tax assets given insufficient positive evidence to support the realization of the Company’s deferred tax assets. The Company intends to continue maintaining a valuation allowance on its deferred tax assets until there is sufficient positive evidence to support the reversal of all or some portion of this allowance. A reduction in the valuation allowance could result in a significant decrease in income tax expense in the period that the release is recorded. However, the exact timing and amount of the reduction in its valuation allowance is unknown at this time and will be subject to the earnings level the Company achieves during fiscal 2023 and future periods. The effective income tax rate for the three months ended September 30, 2022, was 1.6 % as compared with ( 24.5 )% for the three months ended September 30, 2021. The effective income tax rate for the six months ended September 30, 2022, was 3.5 % as compared with ( 8.2 )% for the six months ended September 30, 2021. For the three and six months ended September 30, 2022, the effective income tax rate reflected a limitation on the recognition of tax benefits due to the full valuation allowance. With few exceptions, the Company is no longer subject to U.S. federal, state, or local income tax examinations for fiscal years ended before March 31, 2014, or foreign income tax examinations by tax authorities for fiscal years ended before March 31, 2013. As of September 30, 2022 , the Company settled its only foreign income tax examination. The Company believes appropriate provisions for all outstanding issues have been made for all jurisdictions and all open years.

Pension and Other Postretiremen

Pension and Other Postretirement Benefit Plans	6 Months Ended
	Sep. 30, 2022
Retirement Benefits [Abstract]
Pension and Other Postretirement Benefit Plans	9. PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS The Company sponsors several defined benefit pension plans covering some of its employees. Most employees are ineligible to participate in the plans or have ceased to accrue additional benefits under the plans based upon their service to the Company or years of service accrued under the defined benefit pension plans. Benefits under the defined benefit plans are based on years of service and, for most non-represented employees, on average compensation for certain years. It is the Company’s policy to fund at least the minimum amount required for all qualified plans, using actuarial cost methods and assumptions acceptable under U.S. Government regulations (and for non-U.S. plans, acceptable under local regulations), by making payments into a separate trust. In addition to the defined benefit pension plans, the Company provides certain healthcare benefits for eligible retired employees. Such benefits are unfunded. No active employees are eligible for these benefits. The vast majority of eligible retirees receive a fixed-dollar benefit they can use to purchase healthcare services. A small number of eligible retirees receive traditional retiree medical benefits for which the company pays all premiums. All retirees who are eligible for these traditional benefits are Medicare-eligible. Current plan documents reserve the right to amend or terminate the plans at any time, subject to applicable collective bargaining requirements for represented employees. In accordance with the Compensation – Retirement Benefits topic of ASC 715, the Company has recognized the funded status of the benefit obligation as of the date of the last re-measurement, on the accompanying condensed consolidated balance sheets. The funded status is measured as the difference between the fair value of the plan’s assets and the pension benefit obligation or accumulated postretirement benefit obligation, of the plan. In order to recognize the funded status, the Company determined the fair value of the plan assets. The majority of the plan assets are publicly traded investments, which were valued based on the market price as of the date of re-measurement. Investments that are not publicly traded were valued based on the estimated fair value of those investments based on the Company's evaluation of data from fund managers and comparable market data. Net Periodic Benefit Plan Costs The components of net periodic benefit income for the Company's postretirement benefit plans are shown in the following table: Pension Benefits Three Months Ended September 30, Six Months Ended September 30, 2022 2021 2022 2021 Components of net periodic benefit income: Service cost $ 156 $ 186 $ 342 $ 378 Interest cost 16,290 11,698 32,579 23,521 Expected return on plan assets ( 30,313 ) ( 33,377 ) ( 60,647 ) ( 66,832 ) Amortization of prior service credits 26 26 51 68 Amortization of net loss 7,725 9,614 15,449 19,198 Curtailment loss — — — 16,024 Settlement loss — 3,826 — 3,826 Special termination benefits — 142 — 196 Net periodic benefit (income) expense $ ( 6,116 ) $ ( 7,885 ) $ ( 12,226 ) $ ( 3,621 ) The Company recognized net periodic benefit income from its other postretirement benefits plan of approximately $ 2,291 and $ 4,581 for the three and six months ended September 30, 2022 , respectively, and approximately $ 2,349 and $ 4,698 for the three and six months ended September 30, 2021.

Stockholders' Deficit

Stockholders' Deficit	6 Months Ended
	Sep. 30, 2022
Equity [Abstract]
Stockholders' Deficit	10. STOCKHOLDERS' DEFICIT Accumulated Other Comprehensive Loss Changes in accumulated other comprehensive loss ("AOCI") by component for the three and six months ended September 30, 2022 and 2021, were as follows: Currency Unrealized Gains Defined Benefit Total(1) June 30, 2022 $ ( 58,315 ) $ ( 1,108 ) $ ( 409,828 ) $ ( 469,251 ) Other comprehensive (loss) income before reclassifications ( 12,433 ) 210 — ( 12,223 ) Amounts reclassified from AOCI — ( 583 ) 5,324 (2) 4,741 Net current period OCI ( 12,433 ) ( 373 ) 5,324 ( 7,482 ) September 30, 2022 $ ( 70,748 ) $ ( 1,481 ) $ ( 404,504 ) $ ( 476,733 ) June 30, 2021 $ ( 39,412 ) $ 309 $ ( 468,417 ) $ ( 507,520 ) Other comprehensive (loss) income before reclassifications ( 5,692 ) ( 1,613 ) 97 ( 7,208 ) Amounts reclassified from AOCI — 414 11,109 (2) 11,523 Net current period OCI ( 5,692 ) ( 1,199 ) 11,206 4,315 September 30, 2021 $ ( 45,104 ) $ ( 890 ) $ ( 457,211 ) $ ( 503,205 ) March 31, 2022 $ ( 47,933 ) $ ( 270 ) $ ( 415,151 ) $ ( 463,354 ) Other comprehensive (loss) income before reclassifications ( 22,815 ) ( 261 ) — ( 23,076 ) Amounts reclassified from AOCI — ( 950 ) 10,647 (2) 9,697 Net current period OCI ( 22,815 ) ( 1,211 ) 10,647 ( 13,379 ) September 30, 2022 $ ( 70,748 ) $ ( 1,481 ) $ ( 404,504 ) $ ( 476,733 ) March 31, 2021 $ ( 42,161 ) $ 1,015 $ ( 489,046 ) $ ( 530,192 ) Other comprehensive (loss) income before reclassifications ( 2,943 ) ( 3,333 ) 10,440 4,164 Amounts reclassified from AOCI — 1,428 21,395 (2) 22,823 Net current period OCI ( 2,943 ) ( 1,905 ) 31,835 26,987 September 30, 2021 $ ( 45,104 ) $ ( 890 ) $ ( 457,211 ) $ ( 503,205 ) (1) Net of tax . (2) Includes amortization of actuarial losses and recognized prior service costs, which are included in net periodic pension income. Refer to Note 9 for additional disclosure regarding the Company's postretirement benefit plans.

Segments

Segments	6 Months Ended
	Sep. 30, 2022
Segment Reporting [Abstract]
Segments	11. SEGMENTS The Company reports financial performance based on the following two reportable segments: Systems & Support and Aerospace Structures. The Company’s reportable segments are aligned with how the business is managed, and the Company's views of the markets it serves. The Chief Operating Decision Maker (the "CODM") evaluates performance and allocates resources based upon review of segment information. The CODM utilizes earnings before interest, income taxes, depreciation and amortization, and pension (“Adjusted EBITDAP”) as a primary measure of segment profitability to evaluate performance of its segments and allocate resources. Segment Adjusted EBITDAP is total segment revenue reduced by operating expenses (less depreciation and amortization) identifiable with that segment. Corporate includes general corporate administrative costs and any other costs not identifiable with one of the Company’s segments. The Company does not accumulate net sales information by product or service or groups of similar products and services, and therefore the Company does not disclose net sales by product or service because to do so would be impracticable. Selected financial information for each reportable segment is as follows: Three Months Ended September 30, 2022 Total Corporate & Systems & Aerospace Net sales to external customers $ 307,600 $ — $ 274,198 $ 33,402 Intersegment sales (eliminated in consolidation) — ( 8 ) — 8 Segment profit and reconciliation to consolidated income before income taxes: Adjusted EBITDAP 56,649 — 50,053 6,596 Reconciliation of segment profit to income before income taxes Depreciation and amortization ( 8,685 ) ( 506 ) ( 7,507 ) ( 672 ) Interest expense and other, net ( 32,453 ) Corporate expenses ( 16,596 ) Share-based compensation expense ( 3,952 ) Gain on sale of assets and businesses 103,883 Amortization of acquired contract liabilities 867 Non-service defined benefit income 8,563 Income before income taxes 108,276 Total capital expenditures $ 4,123 $ — $ 3,707 $ 416 Total assets $ 1,568,274 $ 73,674 $ 1,364,298 $ 130,302 Three Months Ended September 30, 2021 Total Corporate & Systems & Aerospace Net sales to external customers $ 357,396 $ — $ 248,758 $ 108,638 Intersegment sales (eliminated in consolidation) — ( 28 ) 23 5 Segment profit and reconciliation to consolidated income before income taxes: Adjusted EBITDAP 52,066 — 45,047 7,019 Reconciliation of segment profit to loss before income taxes Depreciation and amortization ( 12,945 ) ( 1,091 ) ( 8,440 ) ( 3,414 ) Interest expense and other, net ( 34,183 ) Corporate expenses ( 13,678 ) Share-based compensation expense ( 2,825 ) Loss on sale of assets and businesses ( 7,660 ) Amortization of acquired contract liabilities 1,493 Non-service defined benefit income 10,449 Loss before income taxes ( 7,283 ) Total capital expenditures $ 5,369 $ 156 $ 2,655 $ 2,558 Six Months Ended September 30, 2022 Total Corporate & Systems & Aerospace Net sales to external customers $ 656,984 $ — $ 528,841 $ 128,143 Intersegment sales (eliminated in consolidation) — ( 20 ) — 20 Segment profit and reconciliation to consolidated income before income taxes: Adjusted EBITDAP 113,378 — 90,202 23,176 Reconciliation of segment profit to income before income taxes Depreciation and amortization ( 18,491 ) ( 1,095 ) ( 15,028 ) ( 2,368 ) Interest expense and other, net ( 64,365 ) Corporate expenses ( 30,545 ) Share-based compensation expense ( 5,530 ) Gain on sale of assets and businesses 103,883 Amortization of acquired contract liabilities 1,390 Non-service defined benefit income 17,149 Consideration payable to customer related to divestiture ( 17,185 ) Income before income taxes 99,684 Total capital expenditures $ 7,167 $ 109 $ 6,586 $ 472 Six Months Ended September 30, 2021 Total Corporate & Systems & Aerospace Net sales to external customers $ 754,042 $ — $ 507,163 $ 246,879 Intersegment sales (eliminated in consolidation) — ( 47 ) 31 16 Segment profit and reconciliation to consolidated income before income taxes: Adjusted EBITDAP 112,284 — 87,895 24,389 Reconciliation of segment profit to loss before income taxes Depreciation and amortization ( 28,376 ) ( 1,859 ) ( 16,944 ) ( 9,573 ) Interest expense and other, net ( 72,741 ) Corporate expenses ( 30,631 ) Share-based compensation expense ( 5,072 ) Loss on sale of assets and businesses ( 13,629 ) Amortization of acquired contract liabilities 2,707 Non-service defined benefit income 8,727 Debt extinguishment loss ( 9,689 ) Loss before income taxes ( 36,420 ) Total capital expenditures $ 7,481 $ 514 $ 3,757 $ 3,210 During the three months ended September 30, 2022 and 2021, the Company had foreign sales of $ 73,304 and $ 81,119 , respectively. During the six months ended September 30, 2022 and 2021, the Company had foreign sales of $ 143,408 and $ 158,043 , respectively.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Sep. 30, 2022
Commitments And Contingencies [Abstract]
Commitments and Contingencies	12. COMMITMENTS AND CONTINGENCIES In the ordinary course of business, the Company is involved in disputes; claims; and lawsuits with employees, suppliers, and customers; as well as governmental and regulatory inquiries, that it deems to be immaterial. Some may involve claims or potential claims of substantial damages, fines, penalties, or injunctive relief. While the Company cannot predict the outcome of any pending or future litigation or proceeding and no assurances can be given, the Company does not believe that any pending matter will have a material effect, individually or in the aggregate, on its financial position or results of operations. As the Company completes the disposal of certain facilities, it may be exposed to additional costs such as environmental remediation obligations, lease termination costs, or supplier claims which may have a material effect on its financial position or results of operations when such matters arise and a reasonable estimate of the costs can be made. For example, the Company participates in a multiemployer pension plan for the benefit of certain represented employees at its Spokane, Washington, composites manufacturing operations. Under the terms of the multiemployer pension plan, it is reasonably possible that the Company will trigger a withdrawal liability related to the exit of the related facilities and termination of the affected employees. The amount of this potential liability is determined based on the funded status of the plan at the time of withdrawal from the plan. The funded status of the plan is measured by estimating the value of the plan's assets and liabilities, and these values can change significantly based on market conditions and changes in actuarial assumptions made by the plan sponsor. If a withdrawal liability is triggered, the obligation would likely be satisfied through annual payments over a period of at least ten years .

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Sep. 30, 2022
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates.
Revenue Recognition and Contract Balances	Revenue Recognition and Contract Balances The Company's revenue is principally from contracts with customers to provide design, development, manufacturing, and support services associated with specific customer programs. The Company regularly enters into long-term master supply agreements that establish general terms and conditions and may define specific program requirements. Many agreements include clauses that provide sole supplier status to the Company for the duration of the program’s life. Purchase orders (or authorizations to proceed) are issued pursuant to the master supply agreements. Additionally, a majority of the Company’s agreements with customers include options for future purchases. Such options primarily reduce the administrative effort of issuing subsequent purchase orders and do not represent material rights granted to customers. The Company generally enters into agreements directly with its customers and is the principal in all current contracts. The identification of a contract with a customer for purposes of accounting and financial reporting requires an evaluation of the terms and conditions of agreements to determine whether presently enforceable rights and obligations exist. Management considers a number of factors when making this evaluation that include, but are not limited to, the nature and substance of the business exchange, the specific contractual terms and conditions, the promised products and services, the termination provisions in the contract, as well as the nature and execution of the customer’s ordering process and how the Company is authorized to perform work. Generally, presently enforceable rights and obligations are not created until a purchase order is issued by a customer for a specified number of units of product or services. Therefore, the issuance of a purchase order is generally the point at which a contract is identified for accounting and financial reporting purposes. Management identifies the promises to the customer. Promises are generally explicitly stated in each contract, but management also evaluates whether any promises are implied based on the terms of the agreement, past business practice, or other facts and circumstances. Each promise is evaluated to determine if it is a performance obligation. A performance obligation is a promise in a contract to transfer a distinct good or service. The Company considers a number of factors when determining whether a promise is a distinct performance obligation, including whether the customer can benefit from the good or service on its own or together with other resources that are readily available to the customer, whether the Company provides a significant service of integrating goods or services to deliver a combined output to the customer, or whether the goods or services are highly interdependent. The Company’s performance obligations consist of a wide range of engineering design services and manufactured components, as well as spare parts and repairs for OEMs. The transaction price for a contract reflects the consideration the Company expects to receive for fully satisfying the performance obligations in the contract. Typically, the transaction price consists solely of fixed consideration but may include variable consideration for contractual provisions such as unpriced contract modifications, cost-sharing provisions, and other receipts or payments to customers. The Company identifies and estimates variable consideration, typically at the most likely amount the Company expects to receive from its customers. Variable consideration is only included in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized for the contract will not occur, or when the uncertainty associated with the variable consideration is resolved. Consideration paid or payable to a customer is reflected as a reduction in net revenues when the amounts paid are not related to a distinct good or service at the later of when the related revenue is recognized or when the Company pays or promises to pay the consideration to the customer. The Company's contracts with customers generally require payment under normal commercial terms after delivery with payment typically required within 30 to 120 days of delivery. The Company generally is not subject to collecting sales tax and has made an accounting policy election to exclude from the transaction price any sales and other similar taxes collected from customers. As a result, any such collections are accounted for on a net basis. The total transaction price is allocated to each of the identified performance obligations using the relative stand-alone selling price. The objective of the allocation is to reflect the consideration that the Company expects to receive in exchange for the products or services associated with each performance obligation. Stand-alone selling price is the price at which the Company would sell a promised good or service separately to a customer. Stand-alone selling prices are established at contract inception, and subsequent changes in transaction price are allocated on the same basis as at contract inception. When stand-alone selling prices for the Company’s products and services are not observable, the Company uses either the “Expected Cost Plus a Margin” or "Adjusted Market Assessment" approaches to estimate stand-alone selling price. Expected costs are typically derived from the available periodic forecast information. Revenue is recognized when or as control of promised products or services transfers to a customer and is recognized at the amount allocated to each performance obligation associated with the transferred products or services. Service sales, principally representing repair, maintenance, and engineering activities are recognized over the contractual period or as services are rendered. Sales under long-term contracts with performance obligations satisfied over time are recognized using either an input or output method. The Company recognizes revenue over time as it performs on these contracts because of the continuous transfer of control to the customer as represented by contractual terms that entitle the Company to the reimbursement of costs plus a reasonable profit for work performed to manufacture products for which the Company has no alternate use or for work performed on a customer-owned asset. With control transferring over time, revenue is recognized based on the extent of progress toward completion of the performance obligation. The Company generally uses the cost-to-cost input method of progress for its contracts because it best depicts the transfer of control to the customer that occurs as work progresses. Under the cost-to-cost method, the extent of progress toward completion is measured based on the proportion of costs incurred to date to the total estimated costs at completion of the performance obligation. The Company reviews its cost estimates on contracts on a periodic basis, or when circumstances change and warrant a modification to a previous estimate. Cost estimates are largely based on negotiated or estimated purchase contract terms, historical performance trends, and other economic projections. Significant factors that influence these estimates include inflationary trends, technical and schedule risk, internal and subcontractor performance trends, business volume assumptions, asset utilization, and anticipated labor agreements. Revenue and cost estimates are regularly monitored and revised based on changes in circumstances. Impacts from changes in estimates of net sales and cost of sales are recognized on a cumulative catch-up basis, which recognizes in the current period the cumulative effect of the changes on current and prior periods based on a performance obligation’s percentage of completion. Forward loss reserves for anticipated losses on long-term contracts are recorded in full when such losses become evident, to the extent required, and are included in contract liabilities on the accompanying condensed consolidated balance sheets. The Company believes that the accounting estimates and assumptions made by management are appropriate given the increased uncertainties surrounding the severity and duration of the impacts of the COVID-19 pandemic; however, actual results could differ materially from those estimates. For the three months ended September 30, 2022, cumulative catch-up adjustments resulting from changes in contract values and estimated costs that arose during the fiscal year increased net sales, operating income, net income, and earnings per diluted share by approximately $ 867 , $ 9,422 , $ 9,422 , and $ 0.14 , respectively. For the three months ended September 30, 2021, cumulative catch-up adjustments resulting from changes in estimates increased revenue by approximately $ 3,066 and decreased operating loss, net loss, and loss per share by approximately $ 7,455 , $ 7,455 , and $ 0.12 , respectively. For the six months ended September 30, 2022, cumulative catch-up adjustments resulting from changes in contract values and estimated costs that arose during the fiscal year increased net sales, operating income, net income, and earnings per diluted share by approximately $ 11,993 , $ 19,495 , $ 19,495 , and $ 0.30 , respectively. For the six months ended September 30, 2021, cumulative catch-up adjustments resulting from changes in estimates increased revenue by approximately $ 6,375 , and decreased operating loss, net loss, and loss per share by approximately $ 16,910 , $ 16,910 , and $ 0.26 , respectively. Revenues for performance obligations that are not recognized over time are recognized at the point in time when control transfers to the customer. For performance obligations that are satisfied at a point in time, the Company evaluates the point in time when the customer can direct the use of and obtain the benefits from the products and services. Generally, the shipping terms determine the point in time when control transfers to customers. Shipping and handling activities are not considered performance obligations and related costs are included in cost of sales as incurred. Differences in the timing of revenue recognition and contractual billing and payment terms result in the recognition contract assets and liabilities. Refer to Note 4 for further discussion.
Concentration of Credit Risk	Concentration of Credit Risk The Company’s trade and other accounts receivable are exposed to credit risk. However, the risk is limited due to the diversity of the customer base and the customer base’s wide geographical area. Trade accounts receivable from The Boeing Company ("Boeing") (representing commercial, military, and space) represented approximately 16 % and 17 % of total trade accounts receivable as of September 30, 2022 and March 31, 2022, respectively. Trade and other accounts receivable from Daher Aerospace Inc. ("Daher") include receivables that largely correspond with payables associated with transition services and represented approximately 17 % as of September 30, 2022. Trade and other accounts receivable from Daher were not signifcant as of March 31, 2022. The Company had no other concentrations of credit risk of more than 10%. Sales to Boeing for the six months ended September 30, 2022, were $ 189,311 , or 29 % of net sales, of which $ 89,825 and $ 99,486 were from Systems & Support and Aerospace Structures, respectively. Sales to Boeing for the six months ended September 30, 2021, were $ 273,426 , or 36 % of net sales, of which $ 82,988 and $ 190,439 were from Systems & Support and Aerospace Structures, respectively. No other single customer accounted for more than 10% of the Company’s net sales. However, the loss of any significant customer, including Boeing, could have a material adverse effect on the Company and its operating subsidiaries.
Fair Value Measurements	Fair Value Measurements Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. When determining fair value measurements for assets and liabilities required to be recorded or disclosed at fair value, the Company considers the principal or most advantageous market in which it would transact and also considers assumptions that market participants would use when pricing an asset or liability. The fair value hierarchy has three levels of inputs that may be used to measure fair value: Level 1—Unadjusted quoted prices in active markets for identical assets or liabilities; Level 2—Unadjusted quoted prices in active markets for similar assets or liabilities, or unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs other than quoted prices that are observable for the asset or liability; and Level 3—Unobservable inputs for the asset or liability. The Company has applied fair value measurements when comparing the carrying value of assets held for sale with the related fair value less cost to sell (see Note 3), when disclosing the fair value of its long-term debt not recorded at fair value (see Note 6), and to its pension and postretirement plan assets (see Note 9).
Supplemental Cash Flow Information	Supplemental Cash Flow Information In November 2021, the Company entered into an agreement with the DOT under the AMJP for a grant of up to $ 21,259 . The receipt of the full award was primarily conditioned upon the Company committing to not furlough or lay off a defined group of employees during the six-month period of performance between November 2021 and May 2022. The Company received approximately $ 19,400 under the agreement, and, in July, received a letter from the DOT confirming that the Company had satisfied the reporting requirements under the AMJP. In the six months ended September 30, 2022, the Company recognized as a reduction in cost of sales approximately $ 5,300 representing the final balance of the earned grant benefit. For the six months ended September 30, 2022, the Company paid $ 2,619 for income taxes, net of income tax refunds received. For the six months ended September 30, 2021, the Company paid $ 1,760 for income taxes, net of income tax refunds received.

Revenue Recognition and Contr_2

Revenue Recognition and Contracts with Customers (Tables)	6 Months Ended
	Sep. 30, 2022
Change in Contract with Customer, Asset and Liability [Abstract]
Disaggregation of Revenue	The following table shows disaggregated net sales satisfied overtime and at a point in time (excluding intercompany sales) for the three and six months ended September 30, 2022 and 2021: Three Months Ended Six Months Ended 2022 2021 2022 2021 Systems & Support Satisfied over time $ 111,718 $ 114,683 $ 232,436 $ 233,664 Satisfied at a point in time 161,613 132,582 295,015 270,804 Revenue from contracts with customers 273,331 247,265 527,451 504,468 Amortization of acquired contract liabilities 867 1,493 1,390 2,695 Total revenue 274,198 248,758 528,841 507,163 Aerospace Structures Satisfied over time $ 28,456 $ 97,633 $ 118,048 $ 227,156 Satisfied at a point in time 4,946 11,005 10,095 19,711 Revenue from contracts with customers 33,402 108,638 128,143 246,867 Amortization of acquired contract liabilities — — — 12 Total revenue 33,402 108,638 128,143 246,879 $ 307,600 $ 357,396 $ 656,984 $ 754,042 The following table shows disaggregated net sales by end market (excluding intercompany sales) for the three and six months ended September 30, 2022 and 2021: Three Months Ended Six Months Ended 2022 2021 2022 2021 Systems & Support OEM Commercial $ 94,605 $ 59,347 $ 172,625 $ 118,586 OEM Military 61,399 72,317 118,335 149,012 MRO Commercial 65,078 49,618 125,117 105,465 MRO Military 44,960 54,204 95,906 113,316 Non-aviation 7,289 11,779 15,468 18,089 Revenue from contracts with customers 273,331 247,265 527,451 504,468 Amortization of acquired contract liabilities 867 1,493 1,390 2,695 Total revenue $ 274,198 $ 248,758 $ 528,841 $ 507,163 Aerospace Structures OEM Commercial $ 33,241 $ 104,462 $ 123,760 $ 226,154 OEM Military 24 1,210 52 13,861 MRO Commercial — 2,966 3,144 5,782 MRO Military — — — 1,052 Non-aviation 137 — 1,187 18 Revenue from contracts with customers 33,402 108,638 128,143 246,867 Amortization of acquired contract liabilities — — — 12 Total revenue 33,402 108,638 128,143 246,879 $ 307,600 $ 357,396 $ 656,984 $ 754,042
Summary of Contract Assets and Liabilities Balances	Contract balances are classified as assets or liabilities on a contract-by-contract basis at the end of each reporting period. The following table summarizes the Company's contract assets and liabilities balances: September 30, 2022 March 31, Change Contract assets $ 101,974 $ 101,893 $ 81 Contract liabilities ( 43,385 ) ( 172,862 ) 129,477 Net contract asset (liability) $ 58,589 $ ( 70,969 ) $ 129,558
Schedule of Performance Obligations that are Expected to Be Recognized in Future	As of September 30, 2022, the Company has the following unsatisfied, or partially unsatisfied, performance obligations that are expected to be recognized in the future as noted in the table below. The Company expects options to be exercised in addition to the amounts presented below. Total Less than 1 year 1 - 3 years 4 - 5 years More than 5 Unsatisfied performance obligations $ 1,325,232 $ 769,902 $ 534,772 $ 20,558 $ —

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Sep. 30, 2022
Inventory Disclosure [Abstract]
Schedule of components of inventories	The components of inventories are as follows: September 30, March 31, Raw materials $ 51,273 $ 44,841 Work-in-process, including manufactured and purchased components 298,273 269,368 Finished goods 21,981 19,472 Rotable assets 26,548 28,011 Total inventories $ 398,075 $ 361,692

Long-term Debt (Tables)

Long-term Debt (Tables)	6 Months Ended
	Sep. 30, 2022
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	Long-term debt consists of the following: September 30, March 31, Finance leases $ 14,738 $ 16,492 Senior secured first lien notes due 2024 563,171 563,171 Senior secured notes due 2024 525,000 525,000 Senior notes due 2025 500,000 500,000 Less: debt issuance costs ( 12,127 ) ( 15,173 ) 1,590,782 1,589,490 Less: current portion 2,849 3,268 $ 1,587,933 $ 1,586,222
Schedule of Carrying Amounts and Estimated Fair Values of Long-term Debt	Carrying amounts and the related estimated fair values of the Company's long-term debt not recorded at fair value in the consolidated financial statements are as follows: September 30, 2022 March 31, 2022 Carrying Fair Carrying Fair $ 1,590,782 $ 1,446,078 $ 1,589,490 $ 1,639,248

Earnings per Share (Tables)

Earnings per Share (Tables)	6 Months Ended
	Sep. 30, 2022
Earnings Per Share [Abstract]
Summary of Reconciliation between Weighted-average Common Shares Outstanding used in Calculation of Basis and Diluted Earnings Per Share	The following is a reconciliation between the weighted average outstanding shares used in the calculation of basic and diluted earnings per share: Three Months Ended September 30, Six Months Ended September 30, (in thousands) (in thousands) 2022 2021 2022 2021 Weighted average common shares outstanding – basic 65,036 64,545 64,946 64,427 Net effect of dilutive stock options and non-vested stock (1) 246 — 372 — Weighted average common shares outstanding – diluted 65,282 64,545 65,318 64,427 (1) For the three and six months ended September 30, 2022 and 2021 , the shares that could potentially dilute earnings per share in the future but were not included in diluted weighted average common shares outstanding because to do so would have been anti-dilutive were immaterial.

Pension and Other Postretirem_2

Pension and Other Postretirement Benefit Plans (Tables)	6 Months Ended
	Sep. 30, 2022
Retirement Benefits [Abstract]
Schedule of Components of Net Periodic Benefit Income	The components of net periodic benefit income for the Company's postretirement benefit plans are shown in the following table: Pension Benefits Three Months Ended September 30, Six Months Ended September 30, 2022 2021 2022 2021 Components of net periodic benefit income: Service cost $ 156 $ 186 $ 342 $ 378 Interest cost 16,290 11,698 32,579 23,521 Expected return on plan assets ( 30,313 ) ( 33,377 ) ( 60,647 ) ( 66,832 ) Amortization of prior service credits 26 26 51 68 Amortization of net loss 7,725 9,614 15,449 19,198 Curtailment loss — — — 16,024 Settlement loss — 3,826 — 3,826 Special termination benefits — 142 — 196 Net periodic benefit (income) expense $ ( 6,116 ) $ ( 7,885 ) $ ( 12,226 ) $ ( 3,621 )

Stockholders' Deficit (Tables)

Stockholders' Deficit (Tables)	6 Months Ended
	Sep. 30, 2022
Equity [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Loss	Changes in accumulated other comprehensive loss ("AOCI") by component for the three and six months ended September 30, 2022 and 2021, were as follows: Currency Unrealized Gains Defined Benefit Total(1) June 30, 2022 $ ( 58,315 ) $ ( 1,108 ) $ ( 409,828 ) $ ( 469,251 ) Other comprehensive (loss) income before reclassifications ( 12,433 ) 210 — ( 12,223 ) Amounts reclassified from AOCI — ( 583 ) 5,324 (2) 4,741 Net current period OCI ( 12,433 ) ( 373 ) 5,324 ( 7,482 ) September 30, 2022 $ ( 70,748 ) $ ( 1,481 ) $ ( 404,504 ) $ ( 476,733 ) June 30, 2021 $ ( 39,412 ) $ 309 $ ( 468,417 ) $ ( 507,520 ) Other comprehensive (loss) income before reclassifications ( 5,692 ) ( 1,613 ) 97 ( 7,208 ) Amounts reclassified from AOCI — 414 11,109 (2) 11,523 Net current period OCI ( 5,692 ) ( 1,199 ) 11,206 4,315 September 30, 2021 $ ( 45,104 ) $ ( 890 ) $ ( 457,211 ) $ ( 503,205 ) March 31, 2022 $ ( 47,933 ) $ ( 270 ) $ ( 415,151 ) $ ( 463,354 ) Other comprehensive (loss) income before reclassifications ( 22,815 ) ( 261 ) — ( 23,076 ) Amounts reclassified from AOCI — ( 950 ) 10,647 (2) 9,697 Net current period OCI ( 22,815 ) ( 1,211 ) 10,647 ( 13,379 ) September 30, 2022 $ ( 70,748 ) $ ( 1,481 ) $ ( 404,504 ) $ ( 476,733 ) March 31, 2021 $ ( 42,161 ) $ 1,015 $ ( 489,046 ) $ ( 530,192 ) Other comprehensive (loss) income before reclassifications ( 2,943 ) ( 3,333 ) 10,440 4,164 Amounts reclassified from AOCI — 1,428 21,395 (2) 22,823 Net current period OCI ( 2,943 ) ( 1,905 ) 31,835 26,987 September 30, 2021 $ ( 45,104 ) $ ( 890 ) $ ( 457,211 ) $ ( 503,205 ) (1) Net of tax . (2) Includes amortization of actuarial losses and recognized prior service costs, which are included in net periodic pension income. Refer to Note 9 for additional disclosure regarding the Company's postretirement benefit plans.

Segments (Tables)

Segments (Tables)	6 Months Ended
	Sep. 30, 2022
Segment Reporting [Abstract]
Schedule of Selected Financial Information for Each Reportable Segment and Reconciliation of EBITDAP to Operating Income	Selected financial information for each reportable segment is as follows: Three Months Ended September 30, 2022 Total Corporate & Systems & Aerospace Net sales to external customers $ 307,600 $ — $ 274,198 $ 33,402 Intersegment sales (eliminated in consolidation) — ( 8 ) — 8 Segment profit and reconciliation to consolidated income before income taxes: Adjusted EBITDAP 56,649 — 50,053 6,596 Reconciliation of segment profit to income before income taxes Depreciation and amortization ( 8,685 ) ( 506 ) ( 7,507 ) ( 672 ) Interest expense and other, net ( 32,453 ) Corporate expenses ( 16,596 ) Share-based compensation expense ( 3,952 ) Gain on sale of assets and businesses 103,883 Amortization of acquired contract liabilities 867 Non-service defined benefit income 8,563 Income before income taxes 108,276 Total capital expenditures $ 4,123 $ — $ 3,707 $ 416 Total assets $ 1,568,274 $ 73,674 $ 1,364,298 $ 130,302 Three Months Ended September 30, 2021 Total Corporate & Systems & Aerospace Net sales to external customers $ 357,396 $ — $ 248,758 $ 108,638 Intersegment sales (eliminated in consolidation) — ( 28 ) 23 5 Segment profit and reconciliation to consolidated income before income taxes: Adjusted EBITDAP 52,066 — 45,047 7,019 Reconciliation of segment profit to loss before income taxes Depreciation and amortization ( 12,945 ) ( 1,091 ) ( 8,440 ) ( 3,414 ) Interest expense and other, net ( 34,183 ) Corporate expenses ( 13,678 ) Share-based compensation expense ( 2,825 ) Loss on sale of assets and businesses ( 7,660 ) Amortization of acquired contract liabilities 1,493 Non-service defined benefit income 10,449 Loss before income taxes ( 7,283 ) Total capital expenditures $ 5,369 $ 156 $ 2,655 $ 2,558 Six Months Ended September 30, 2022 Total Corporate & Systems & Aerospace Net sales to external customers $ 656,984 $ — $ 528,841 $ 128,143 Intersegment sales (eliminated in consolidation) — ( 20 ) — 20 Segment profit and reconciliation to consolidated income before income taxes: Adjusted EBITDAP 113,378 — 90,202 23,176 Reconciliation of segment profit to income before income taxes Depreciation and amortization ( 18,491 ) ( 1,095 ) ( 15,028 ) ( 2,368 ) Interest expense and other, net ( 64,365 ) Corporate expenses ( 30,545 ) Share-based compensation expense ( 5,530 ) Gain on sale of assets and businesses 103,883 Amortization of acquired contract liabilities 1,390 Non-service defined benefit income 17,149 Consideration payable to customer related to divestiture ( 17,185 ) Income before income taxes 99,684 Total capital expenditures $ 7,167 $ 109 $ 6,586 $ 472 Six Months Ended September 30, 2021 Total Corporate & Systems & Aerospace Net sales to external customers $ 754,042 $ — $ 507,163 $ 246,879 Intersegment sales (eliminated in consolidation) — ( 47 ) 31 16 Segment profit and reconciliation to consolidated income before income taxes: Adjusted EBITDAP 112,284 — 87,895 24,389 Reconciliation of segment profit to loss before income taxes Depreciation and amortization ( 28,376 ) ( 1,859 ) ( 16,944 ) ( 9,573 ) Interest expense and other, net ( 72,741 ) Corporate expenses ( 30,631 ) Share-based compensation expense ( 5,072 ) Loss on sale of assets and businesses ( 13,629 ) Amortization of acquired contract liabilities 2,707 Non-service defined benefit income 8,727 Debt extinguishment loss ( 9,689 ) Loss before income taxes ( 36,420 ) Total capital expenditures $ 7,481 $ 514 $ 3,757 $ 3,210

Background and Basis of Prese_2

Background and Basis of Presentation - Additional Information (Details) - Segment	6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Background And Basis Of Presentation [Line Items]
Number of reportable segments	2	2

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Nov. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2022
Change In Accounting Estimate [Line Items]
Change in accounting estimate				$ 11,993
Operating income (loss)		$ 132,166	$ 16,451	146,900	$ 37,283
Net income (loss)		$ 106,526	$ (9,070)	$ 96,184	$ (39,421)
Loss per share		$ 1.64	$ (0.14)	$ 1.48	$ (0.61)
Earnings per diluted share		$ 1.63	$ (0.14)	$ 1.47	$ (0.61)
Income taxes paid, net of refunds received				$ 2,619	$ 1,760
Net sales		$ 307,600	$ 357,396	656,984	754,042
Changes in Estimates [Member]
Change In Accounting Estimate [Line Items]
Operating income (loss)		9,422	(7,455)	19,495	(16,910)
Net income (loss)		$ 9,422	$ (7,455)	$ 19,495	$ (16,910)
Loss per share			$ (0.12)		$ (0.26)
Earnings per diluted share		$ 0.14		$ 0.30
Net sales		$ 867	$ 3,066	$ 11,993	$ 6,375
Aviation Manufacturing Jobs Protection Program Agreement [Member]
Change In Accounting Estimate [Line Items]
Period of performance for employees	6 months
Amount of grant received	$ 19,400
Cost of sales recognized				$ 5,300
Boeing [Member] | Trade Accounts Receivable [Member] | Credit Concentration Risk [Member]
Change In Accounting Estimate [Line Items]
Concentration Risk, Percentage				16%		17%
Boeing [Member] | Net sales [Member] | Customer Concentration Risk [Member]
Change In Accounting Estimate [Line Items]
Concentration Risk, Percentage				29%	36%
Net sales				$ 189,311	$ 273,426
Boeing [Member] | Net sales [Member] | Customer Concentration Risk [Member] | Systems & Support [Member]
Change In Accounting Estimate [Line Items]
Net sales				89,825	82,988
Boeing [Member] | Net sales [Member] | Customer Concentration Risk [Member] | Aerospace Structures [Member]
Change In Accounting Estimate [Line Items]
Net sales				$ 99,486	$ 190,439
Daher Aerospace Inc. [Member] | Trade Accounts Receivable [Member] | Credit Concentration Risk [Member]
Change In Accounting Estimate [Line Items]
Concentration Risk, Percentage				17%
Minimum [Member]
Change In Accounting Estimate [Line Items]
Standard trade receivable, payment terms				30 days
Maximum [Member]
Change In Accounting Estimate [Line Items]
Standard trade receivable, payment terms				120 days
Amount of grant receivable upon agreement	$ 21,259

Divested Operations and Asset_2

Divested Operations and Assets Held For Sale - Additional Information (Details) - USD ($)	1 Months Ended			3 Months Ended
	Jul. 31, 2022	Oct. 31, 2021	May 31, 2021	Sep. 30, 2022	Sep. 30, 2021	Jun. 30, 2021
Product Lines of Staverton, United Kingdom operations [Member]
Discontinued operations and assets held for sale
Proceeds from divestiture of business		$ 34,000,000
Stuart Manufacturing Operations [Member]
Discontinued operations and assets held for sale
Proceeds from divestiture of business	$ 0
Gain (loss) on disposition of business	$ 99,200,000
Assets Held for Sale Composites Manufacturing Operations [Member]
Discontinued operations and assets held for sale
Proceeds from divestiture of business			$ 155,000,000
Gain (loss) on disposition of business				$ 4,500,000	$ (8,000,000)	$ (6,000,000)
Curtailment charge						$ 16,000,000

Revenue Recognition and Contr_3

Revenue Recognition and Contracts with Customers - Schedule of Disaggregated Net Sales Satisfied Overtime and at a Point in Time (Excluding Intercompany Sales) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation Of Revenue [Line Items]
Amortization of acquired contract liabilities	$ 867	$ 1,493	$ 1,390	$ 2,707
Net sales	307,600	357,396	656,984	754,042
Systems & Support [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	273,331	247,265	527,451	504,468
Amortization of acquired contract liabilities	867	1,493	1,390	2,695
Revenues excluding intercompany sales	274,198	248,758	528,841	507,163
Systems & Support [Member] | Transferred over Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	111,718	114,683	232,436	233,664
Systems & Support [Member] | Transferred at Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	161,613	132,582	295,015	270,804
Aerospace Structures [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	33,402	108,638	128,143	246,867
Amortization of acquired contract liabilities	0	0	0	12
Revenues excluding intercompany sales	33,402	108,638	128,143	246,879
Aerospace Structures [Member] | Transferred over Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	28,456	97,633	118,048	227,156
Aerospace Structures [Member] | Transferred at Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	$ 4,946	$ 11,005	$ 10,095	$ 19,711

Revenue Recognition and Contr_4

Revenue Recognition and Contracts with Customers - Schedule of Disaggregated Net Sales by End Market (Excluding Intercompany Sales) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation Of Revenue [Line Items]
Amortization of acquired contract liabilities	$ 867	$ 1,493	$ 1,390	$ 2,707
Net sales	307,600	357,396	656,984	754,042
Systems & Support [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	273,331	247,265	527,451	504,468
Amortization of acquired contract liabilities	867	1,493	1,390	2,695
Revenues excluding intercompany sales	274,198	248,758	528,841	507,163
Systems & Support [Member] | OEM Commercial [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	94,605	59,347	172,625	118,586
Systems & Support [Member] | OEM Military [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	61,399	72,317	118,335	149,012
Systems & Support [Member] | MRO Commercial [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	65,078	49,618	125,117	105,465
Systems & Support [Member] | MRO Military [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	44,960	54,204	95,906	113,316
Systems & Support [Member] | Non-aviation [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	7,289	11,779	15,468	18,089
Aerospace Structures [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	33,402	108,638	128,143	246,867
Amortization of acquired contract liabilities	0	0	0	12
Revenues excluding intercompany sales	33,402	108,638	128,143	246,879
Aerospace Structures [Member] | OEM Commercial [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	33,241	104,462	123,760	226,154
Aerospace Structures [Member] | OEM Military [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	24	1,210	52	13,861
Aerospace Structures [Member] | MRO Commercial [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	0	2,966	3,144	5,782
Aerospace Structures [Member] | MRO Military [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	1,052
Aerospace Structures [Member] | Non-aviation [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	$ 137	$ 0	$ 1,187	$ 18

Revenue Recognition and Contr_5

Revenue Recognition and Contracts with Customers - Summary of Contract Assets and Liabilities Balances (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2022	Mar. 31, 2022
Revenue from Contract with Customer [Abstract]
Contract assets	$ 101,974	$ 101,893
Contract liabilities	(43,385)	(172,862)
Net contract asset (liability)	58,589	$ (70,969)
Change in contract assets	81
Change in contract liabilities	129,477
Change in net contract asset (liability)	$ 129,558

Revenue Recognition and Contr_6

Revenue Recognition and Contracts with Customers - Additional Information (Details) $ in Thousands	6 Months Ended
	Sep. 30, 2022 USD ($)
Revenue from Contract with Customer [Abstract]
Revenue recognized due to changes in estimates associated with performance obligations	$ 11,993
Contract with Customer, Liability, Revenue Recognized	31,482
Customer advance repayments obligations	$ 103,803

Revenue Recognition and Contr_7

Revenue Recognition and Contracts with Customers - Schedule of Performance Obligations that are Expected to Be Recognized in Future (Details) $ in Thousands	Sep. 30, 2022 USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	$ 1,325,232
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-10-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	769,902
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-10-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	534,772
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-10-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	20,558
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2028-10-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	$ 0
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-10-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-10-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	3 years
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2027-10-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	5 years
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-10-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-10-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	4 years
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2028-10-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	5 years

Revenue Recognition and Contr_8

Revenue Recognition and Contracts with Customers - Schedule of Performance Obligations that are Expected to Be Recognized in Future (Details 1) $ in Thousands	Sep. 30, 2022 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unsatisfied performance obligations	$ 1,325,232

Inventories - Schedule of Compo

Inventories - Schedule of Components of Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Mar. 31, 2022
Inventory Disclosure [Abstract]
Raw materials	$ 51,273	$ 44,841
Work-in-process, including manufactured and purchased components	298,273	269,368
Finished goods	21,981	19,472
Rotable assets	26,548	28,011
Total inventories	$ 398,075	$ 361,692

Long-term Debt - Schedule of Lo

Long-term Debt - Schedule of Long-term Debt Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Mar. 31, 2022
Debt Instrument [Line Items]
Less: debt issuance costs	$ (12,127)	$ (15,173)
Long-term debt	1,590,782	1,589,490
Current portion of long-term debt	2,849	3,268
Long-term debt, less current portion	1,587,933	1,586,222
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Long-term debt	14,738	16,492
Senior Secured First Lien Notes Due 2024 [Member]
Debt Instrument [Line Items]
Long-term debt	563,171	563,171
Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Long-term debt	525,000	525,000
Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 500,000	$ 500,000

Long-term Debt - Additional Inf

Long-term Debt - Additional Information (Details) - USD ($)

1 Months Ended

3 Months Ended

6 Months Ended

Nov. 05, 2021

Aug. 17, 2020

Sep. 23, 2019

Aug. 17, 2017

Oct. 31, 2022

Aug. 31, 2021

May 31, 2021

Dec. 31, 2021

Jun. 30, 2021

Sep. 30, 2022

Sep. 30, 2021

Mar. 31, 2022

Debt Instrument [Line Items]

Premium on redemption of first lien notes

$ 7,489,000

Interest paid, including capitalized interest, operating and investing activities

$ 62,731,000

$ 82,570,000

Receivable Securitization Facility [Member]

Debt Instrument [Line Items]

Percentage of drawn fee

2%

Percentage of collateralized fee incurred

1.25%

Long-term debt

0

Letters of credit outstanding, amount

20,970,000

Receivable Securitization Facility [Member] | BSBY [Member]

Debt Instrument [Line Items]

Line of credit facility, commitment fee percentage

2.25%

Receivable Securitization Facility [Member] | Minimum [Member]

Debt Instrument [Line Items]

Line of credit facility, unused capacity, commitment fee percentage

0.45%

Receivable Securitization Facility [Member] | Maximum [Member]

Debt Instrument [Line Items]

Line of credit facility, maximum borrowing capacity

100,000,000

Line of credit facility, unused capacity, commitment fee percentage

0.50%

Senior Secured First Lien Notes Due 2024 [Member]

Debt Instrument [Line Items]

Debt instrument, interest rate, stated percentage

8.875%

Long-term debt

$ 563,171,000

$ 563,171,000

Debt instrument, principal amount

$ 700,000,000

Proceeds from loan, percentage of principal (as a percent)

100%

Debt instrument, interest rate, effective percentage

8.875%

Debt instrument, interest payment terms

Interest is payable semiannually in cash in arrears on June 1 and December 1 of each year.

Debt instrument, redemption price, percentage

100%

Debt instrument, redemption, description

40%

Debt instrument, redemption price, percentage - equity offering

108.875%

Debt instrument, redemption price, percentage - change of control

101%

Debt instrument repayment premium percentage

106.656%

Aggregate principal amount of Notes outstanding

$ 350,000,000

Available amount in asset sale covenants

$ 100,000,000

Premium on redemption of first lien notes

$ 1,619,000

$ 7,489,000

Repayments of Secured Debt

$ 24,318,000

$ 112,511,000

Senior Secured First Lien Notes Due 2024 [Member] | Subsequent Events [Member]

Debt Instrument [Line Items]

Premium on redemption of first lien notes

$ 1,287,000

Repayments of Secured Debt

$ 19,340,000

Senior Notes Due 2024 [Member]

Debt Instrument [Line Items]

Debt instrument, interest rate, stated percentage

6.25%

Long-term debt

$ 525,000,000

525,000,000

Debt instrument, principal amount

$ 525,000,000

Debt instrument, interest rate, effective percentage

6.25%

Debt instrument, interest payment terms

Interest on the 2024 Notes is payable semiannually in cash in arrears on March 15 and September 15 of each year.

Debt instrument, redemption price, percentage

100%

Debt instrument, due date

Sep. 15, 2024

Senior Notes Due 2025 [Member]

Debt Instrument [Line Items]

Debt instrument, interest rate, stated percentage

7.75%

Long-term debt

$ 500,000,000

$ 500,000,000

Debt instrument, principal amount

$ 500,000,000

Proceeds from loan, percentage of principal (as a percent)

100%

Debt instrument, interest rate, effective percentage

7.75%

Debt instrument, interest payment terms

Interest on the 2025 Notes accrues at the rate of 7.750% per annum and is payable semiannually in cash in arrears on February 15 and August 15 of each year.

Debt instrument, due date

Aug. 15, 2025

Amended Receivable Securitization Facility [Member]

Debt Instrument [Line Items]

Receivables securitization facility, expiration period

2024-11

Long-term Debt - Schedule of Ca

Long-term Debt - Schedule of Carrying Amounts and Estimated Fair Values of Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Mar. 31, 2022
Debt Instrument [Line Items]
Long-term debt	$ 1,590,782	$ 1,589,490
Reported Value Measurement [Member]
Debt Instrument [Line Items]
Long-term debt	1,590,782	1,589,490
Estimate of Fair Value Measurement [Member]
Debt Instrument [Line Items]
Long-term debt	$ 1,446,078	$ 1,639,248

Earnings per Share - Summary of

Earnings per Share - Summary of Reconciliation between Weighted-average Common Shares Outstanding used in Calculation of Basis and Diluted Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Weighted average common shares outstanding—basic	65,036	64,545	64,946	64,427
Net effect of dilutive stock options and non-vested stock	246		372
Weighted average common shares outstanding—diluted	65,282	64,545	65,318	64,427

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2022
Income Tax Contingency [Line Items]
Unrecognized tax benefits	$ 11,903		$ 11,903		$ 11,800
Effective income tax rate (as a percent)	1.60%	(24.50%)	3.50%	(8.20%)

Pension and Other Postretirem_3

Pension and Other Postretirement Benefit Plans - Schedule of Components of Net Periodic Benefit Income (Details) - Pension Plan [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 156	$ 186	$ 342	$ 378
Interest cost	16,290	11,698	32,579	23,521
Expected return on plan assets	(30,313)	(33,377)	(60,647)	(66,832)
Amortization of prior service credits	26	26	51	68
Amortization of net loss	7,725	9,614	15,449	19,198
Curtailment loss				16,024
Settlement loss		3,826		3,826
Special termination benefits		142		196
Net periodic benefit (income) expense	$ (6,116)	$ (7,885)	$ (12,226)	$ (3,621)

Pension and Other Postretirem_4

Pension and Other Postretirement Benefit Plans - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Other postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit income	$ 2,291	$ 2,349	$ 4,581	$ 4,698

Stockholders' Deficit - Schedul

Stockholders' Deficit - Schedule of Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance		$ (805,287)	$ (826,226)	$ (787,423)	$ (818,853)
Total other comprehensive (loss) income		(7,482)	4,315	(13,379)	26,987
Balance		(702,103)	(828,869)	(702,103)	(828,869)
Currency Translation Adjustment [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance		(58,315)	(39,412)	(47,933)	(42,161)
Other comprehensive (loss) income before reclassifications		(12,433)	(5,692)	(22,815)	(2,943)
Total other comprehensive (loss) income		(12,433)	(5,692)	(22,815)	(2,943)
Balance		(70,748)	(45,104)	(70,748)	(45,104)
Unrealized Gains and Losses on Derivative Instruments [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance		(1,108)	309	(270)	1,015
Other comprehensive (loss) income before reclassifications		210	(1,613)	(261)	(3,333)
Amounts reclassified from AOCI		(583)	414	(950)	1,428
Total other comprehensive (loss) income		(373)	(1,199)	(1,211)	(1,905)
Balance		(1,481)	(890)	(1,481)	(890)
Defined Benefit Pension Plans and Other Postretirement Benefits [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance		(409,828)	(468,417)	(415,151)	(489,046)
Other comprehensive (loss) income before reclassifications			97		10,440
Amounts reclassified from AOCI	[1]	5,324	11,109	10,647	21,395
Total other comprehensive (loss) income		5,324	11,206	10,647	31,835
Balance		(404,504)	(457,211)	(404,504)	(457,211)
Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance	[2]	(469,251)	(507,520)	(463,354)	(530,192)
Other comprehensive (loss) income before reclassifications	[2]	(12,223)	(7,208)	(23,076)	4,164
Amounts reclassified from AOCI	[2]	4,741	11,523	9,697	22,823
Total other comprehensive (loss) income	[2]	(7,482)	4,315	(13,379)	26,987
Balance	[2]	$ (476,733)	$ (503,205)	$ (476,733)	$ (503,205)
[1] Includes amortization of actuarial losses and recognized prior service costs, which are included in net periodic pension income. Refer to Note 9 for additional disclosure regarding the Company's postretirement benefit plans. Net of tax

Segments - Additional Informati

Segments - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) Segment	Sep. 30, 2021 USD ($) Segment
Segment Reporting Information [Line Items]
Number of reportable segments | Segment			2	2
Net sales	$ 307,600	$ 357,396	$ 656,984	$ 754,042
Foreign Sales [Member]
Segment Reporting Information [Line Items]
Net sales	$ 73,304	$ 81,119	$ 143,408	$ 158,043

Segments - Schedule of Selected

Segments - Schedule of Selected Financial Information for Each Reportable Segment and Reconciliation of EBITDAP to Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2022
Segment Reporting Information [Line Items]
Net sales to external customers	$ 307,600	$ 357,396	$ 656,984	$ 754,042
Intersegment sales (eliminated in consolidation)	0
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP	56,649	52,066	113,378	112,284
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization	(8,685)	(12,945)	(18,491)	(28,376)
Interest expense and other, net	(32,453)	(34,183)	(64,365)	(72,741)
Corporate expenses	(16,596)	(13,678)	(30,545)	(30,631)
Share-based compensation expense	(3,952)	(2,825)	(5,530)	(5,072)
Gain (loss) on sale of assets and businesses	103,883	(7,660)	103,883	(13,629)
Amortization of acquired contract liabilities	867	1,493	1,390	2,707
Non-service defined benefit income	8,563	10,449	17,149	8,727
Consideration payable to customer related to divestiture			(17,185)
Debt extinguishment loss				(9,689)
Income (loss) from continuing operations before income taxes	108,276	(7,283)	99,684	(36,420)
Total capital expenditures	4,123	5,369	7,167	7,481
Total assets	1,568,274		1,568,274		$ 1,761,166
Systems & Support [Member]
Segment Reporting Information [Line Items]
Intersegment sales (eliminated in consolidation)	0	23	0	31
Reconciliation of segment profit to income (loss) before income taxes
Amortization of acquired contract liabilities	867	1,493	1,390	2,695
Aerospace Structures [Member]
Segment Reporting Information [Line Items]
Intersegment sales (eliminated in consolidation)	8	5	20	16
Reconciliation of segment profit to income (loss) before income taxes
Amortization of acquired contract liabilities	0	0	0	12
Corporate & Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales to external customers	0	0
Intersegment sales (eliminated in consolidation)	(8)	(28)	(20)	(47)
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP	0
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization	(506)	(1,091)	(1,095)	(1,859)
Total capital expenditures		156	109	514
Total assets	73,674		73,674
Operating Segments [Member] | Systems & Support [Member]
Segment Reporting Information [Line Items]
Net sales to external customers	274,198	248,758	528,841	507,163
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP	50,053	45,047	90,202	87,895
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization	(7,507)	(8,440)	(15,028)	(16,944)
Total capital expenditures	3,707	2,655	6,586	3,757
Total assets	1,364,298		1,364,298
Operating Segments [Member] | Aerospace Structures [Member]
Segment Reporting Information [Line Items]
Net sales to external customers	33,402	108,638	128,143	246,879
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP	6,596	7,019	23,176	24,389
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization	(672)	(3,414)	(2,368)	(9,573)
Total capital expenditures	416	$ 2,558	472	$ 3,210
Total assets	$ 130,302		$ 130,302

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details)	6 Months Ended
	Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Annual payment period for withdrawal liability obligation	10 years

Restructuring - Additional Info

Restructuring - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Restructuring Cost And Reserve [Line Items]
Restructuring	$ 2,152	$ 3,897	$ 2,851	$ 8,382